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libreoffice/chart2/source/controller/main/ObjectHierarchy.cxx
Daniel Baumann 8e63e14cf6
Adding upstream version 4:25.2.3.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
2025-06-22 16:20:04 +02:00

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26 KiB
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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* This file incorporates work covered by the following license notice:
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed
* with this work for additional information regarding copyright
* ownership. The ASF licenses this file to you under the Apache
* License, Version 2.0 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.apache.org/licenses/LICENSE-2.0 .
*/
#include <ObjectHierarchy.hxx>
#include <ObjectIdentifier.hxx>
#include <Diagram.hxx>
#include <RegressionCurveHelper.hxx>
#include <RegressionCurveModel.hxx>
#include <Axis.hxx>
#include <AxisHelper.hxx>
#include <chartview/ExplicitValueProvider.hxx>
#include <ChartType.hxx>
#include <ChartTypeHelper.hxx>
#include <ChartModel.hxx>
#include <DataSeries.hxx>
#include <DataSeriesHelper.hxx>
#include <GridProperties.hxx>
#include <LegendHelper.hxx>
#include <chartview/DrawModelWrapper.hxx>
#include <unonames.hxx>
#include <BaseCoordinateSystem.hxx>
#include <map>
#include <algorithm>
#include <cstddef>
#include <com/sun/star/drawing/XShapes.hpp>
#include <com/sun/star/chart/ErrorBarStyle.hpp>
#include <com/sun/star/container/XIndexAccess.hpp>
#include <com/sun/star/awt/Key.hpp>
#include <com/sun/star/awt/KeyModifier.hpp>
#include <utility>
#include <comphelper/diagnose_ex.hxx>
using namespace ::com::sun::star;
using namespace ::com::sun::star::chart2;
using ::com::sun::star::uno::Reference;
namespace
{
void lcl_getChildOIDs(
::chart::ObjectHierarchy::tChildContainer& rOutChildren,
const Reference< container::XIndexAccess >& xShapes )
{
if( !xShapes.is())
return;
sal_Int32 nCount = xShapes->getCount();
for( sal_Int32 i=0; i<nCount; ++i)
{
Reference< beans::XPropertySet > xShapeProp( xShapes->getByIndex( i ), uno::UNO_QUERY );
if( xShapeProp.is())
{
Reference< beans::XPropertySetInfo > xInfo( xShapeProp->getPropertySetInfo());
OUString aName;
if( xInfo.is() &&
xInfo->hasPropertyByName( u"Name"_ustr) &&
(xShapeProp->getPropertyValue( u"Name"_ustr) >>= aName ) &&
!aName.isEmpty() &&
::chart::ObjectIdentifier::isCID( aName ))
{
rOutChildren.emplace_back( aName );
}
Reference< container::XIndexAccess > xNewShapes( xShapeProp, uno::UNO_QUERY );
if( xNewShapes.is())
lcl_getChildOIDs( rOutChildren, xNewShapes );
}
}
}
void lcl_addAxisTitle( const rtl::Reference< ::chart::Axis >& xAxis, ::chart::ObjectHierarchy::tChildContainer& rContainer, const rtl::Reference<::chart::ChartModel>& xChartModel )
{
if( xAxis.is())
{
Reference< XTitle > xAxisTitle( xAxis->getTitleObject());
if( xAxisTitle.is())
rContainer.emplace_back( ::chart::ObjectIdentifier::createClassifiedIdentifierForObject( xAxisTitle, xChartModel ) );
}
}
} // anonymous namespace
namespace chart
{
void ObjectHierarchy::createTree( const rtl::Reference<::chart::ChartModel>& xChartDocument )
{
m_aChildMap.clear();
if( !xChartDocument.is() )
return;
//@todo: change ObjectIdentifier to take an XChartDocument rather than XModel
rtl::Reference< Diagram > xDiagram = xChartDocument->getFirstChartDiagram();
ObjectIdentifier aDiaOID;
if( xDiagram.is() )
aDiaOID = ObjectIdentifier( ObjectIdentifier::createClassifiedIdentifierForObject( static_cast<cppu::OWeakObject*>(xDiagram.get()), xChartDocument ) );
tChildContainer aTopLevelContainer;
// First Level
// Chart Area
if( m_bOrderingForElementSelector )
{
aTopLevelContainer.emplace_back( ObjectIdentifier::createClassifiedIdentifier( OBJECTTYPE_PAGE, u"" ) );
if( xDiagram.is() )
{
aTopLevelContainer.push_back( aDiaOID );
createWallAndFloor( aTopLevelContainer, xDiagram );
createLegendTree( aTopLevelContainer, xChartDocument, xDiagram );
}
}
// Main Title
Reference< XTitle > xMainTitle( xChartDocument->getTitleObject());
if( xMainTitle.is())
aTopLevelContainer.emplace_back( ObjectIdentifier::createClassifiedIdentifierForObject( xMainTitle, xChartDocument ) );
if( xDiagram.is())
{
// Sub Title. Note: This is interpreted of being top level
Reference< XTitle > xSubTitle( xDiagram->getTitleObject());
if( xSubTitle.is())
aTopLevelContainer.emplace_back( ObjectIdentifier::createClassifiedIdentifierForObject( xSubTitle, xChartDocument ) );
if( !m_bOrderingForElementSelector )
{
// Axis Titles. Note: These are interpreted of being top level
const std::vector< rtl::Reference< Axis > > aAxes = AxisHelper::getAllAxesOfDiagram( xDiagram );
for( rtl::Reference< Axis > const & axis : aAxes )
lcl_addAxisTitle( axis, aTopLevelContainer, xChartDocument );
// Diagram
aTopLevelContainer.push_back( aDiaOID );
}
if( m_bFlattenDiagram )
createDiagramTree( aTopLevelContainer, xChartDocument, xDiagram );
else
{
tChildContainer aSubContainer;
createDiagramTree( aSubContainer, xChartDocument, xDiagram );
if( !aSubContainer.empty() )
m_aChildMap[ aDiaOID ] = std::move(aSubContainer);
}
if( !m_bOrderingForElementSelector )
createLegendTree( aTopLevelContainer, xChartDocument, xDiagram );
}
// #i12587# support for shapes in chart
if ( !m_bOrderingForElementSelector )
{
createAdditionalShapesTree( aTopLevelContainer );
}
// Chart Area
if( !m_bOrderingForElementSelector )
aTopLevelContainer.emplace_back( ObjectIdentifier::createClassifiedIdentifier( OBJECTTYPE_PAGE, u"" ) );
if( ! aTopLevelContainer.empty())
m_aChildMap[ObjectHierarchy::getRootNodeOID()] = std::move(aTopLevelContainer);
}
void ObjectHierarchy::createLegendTree(
tChildContainer & rContainer,
const rtl::Reference<::chart::ChartModel> & xChartDoc,
const rtl::Reference< Diagram > & xDiagram )
{
if( !(xDiagram.is() && LegendHelper::hasLegend( xDiagram )) )
return;
ObjectIdentifier aLegendOID( ObjectIdentifier( ObjectIdentifier::createClassifiedIdentifierForObject( xDiagram->getLegend(), xChartDoc ) ) );
rContainer.push_back( aLegendOID );
// iterate over child shapes of legend and search for matching CIDs
if( m_pExplicitValueProvider )
{
rtl::Reference< SvxShapeGroupAnyD > xLegendShapeContainer =
dynamic_cast<SvxShapeGroupAnyD*>(
m_pExplicitValueProvider->getShapeForCID( aLegendOID.getObjectCID() ).get() );
tChildContainer aLegendEntryOIDs;
lcl_getChildOIDs( aLegendEntryOIDs, xLegendShapeContainer );
m_aChildMap[aLegendOID] = std::move(aLegendEntryOIDs);
}
}
void ObjectHierarchy::createAxesTree(
tChildContainer & rContainer,
const rtl::Reference<::chart::ChartModel> & xChartDoc,
const rtl::Reference< Diagram > & xDiagram )
{
sal_Int32 nDimensionCount = xDiagram->getDimension();
rtl::Reference< ChartType > xChartType( xDiagram->getChartTypeByIndex( 0 ) );
bool bSupportsAxesGrids = ChartTypeHelper::isSupportingMainAxis( xChartType, nDimensionCount, 0 );
if( !bSupportsAxesGrids )
return;
// Data Table
uno::Reference<chart2::XDataTable> xDataTable = xDiagram->getDataTable();
if (xDataTable.is())
{
rContainer.push_back(ObjectIdentifier::createClassifiedIdentifierForObject(xDataTable, xChartDoc));
}
// Axes
std::vector< rtl::Reference< Axis > > aAxes = AxisHelper::getAllAxesOfDiagram( xDiagram, /* bOnlyVisible = */ true );
if( !m_bOrderingForElementSelector )
{
for (const auto& rAxis : aAxes)
rContainer.push_back( ObjectIdentifier::createClassifiedIdentifierForObject( rAxis, xChartDoc ) );
}
// get all axes, also invisible ones
aAxes = AxisHelper::getAllAxesOfDiagram( xDiagram );
// Grids
for( rtl::Reference< Axis > const & xAxis : aAxes )
{
if(!xAxis.is())
continue;
sal_Int32 nCooSysIndex = 0;
sal_Int32 nDimensionIndex = 0;
sal_Int32 nAxisIndex = 0;
AxisHelper::getIndicesForAxis( xAxis, xDiagram, nCooSysIndex, nDimensionIndex, nAxisIndex );
if( nAxisIndex>0 && !ChartTypeHelper::isSupportingSecondaryAxis( xChartType, nDimensionCount ) )
continue;
if( m_bOrderingForElementSelector )
{
// axis
if( AxisHelper::isAxisVisible( xAxis ) )
rContainer.emplace_back( ObjectIdentifier::createClassifiedIdentifierForObject( xAxis, xChartDoc ) );
// axis title
lcl_addAxisTitle( xAxis, rContainer, xChartDoc );
}
rtl::Reference< ::chart::GridProperties > xGridProperties( xAxis->getGridProperties2() );
if( AxisHelper::isGridVisible( xGridProperties ) )
{
//main grid
rContainer.emplace_back( ObjectIdentifier::createClassifiedIdentifierForGrid( xAxis, xChartDoc ) );
}
std::vector< rtl::Reference< ::chart::GridProperties > > aSubGrids( xAxis->getSubGridProperties2() );
for( size_t nSubGrid = 0; nSubGrid < aSubGrids.size(); ++nSubGrid )
{
if( AxisHelper::isGridVisible( aSubGrids[nSubGrid] ) )
{
//sub grid
rContainer.emplace_back( ObjectIdentifier::createClassifiedIdentifierForGrid( xAxis, xChartDoc, nSubGrid ) );
}
}
}
}
void ObjectHierarchy::createWallAndFloor(
tChildContainer & rContainer,
const rtl::Reference< Diagram > & xDiagram )
{
sal_Int32 nDimensionCount = xDiagram->getDimension();
bool bIsThreeD = ( nDimensionCount == 3 );
bool bHasWall = xDiagram->isSupportingFloorAndWall();
if( bHasWall && bIsThreeD )
{
rContainer.emplace_back( ObjectIdentifier::createClassifiedIdentifier( OBJECTTYPE_DIAGRAM_WALL, u"" ) );
Reference< beans::XPropertySet > xFloor( xDiagram->getFloor());
if( xFloor.is())
rContainer.emplace_back( ObjectIdentifier::createClassifiedIdentifier( OBJECTTYPE_DIAGRAM_FLOOR, u"" ) );
}
}
void ObjectHierarchy::createDiagramTree(
tChildContainer & rContainer,
const rtl::Reference<::chart::ChartModel> & xChartDoc,
const rtl::Reference< Diagram > & xDiagram )
{
if( !m_bOrderingForElementSelector )
{
createDataSeriesTree( rContainer, xDiagram );
createAxesTree( rContainer, xChartDoc, xDiagram );
createWallAndFloor( rContainer, xDiagram );
}
else
{
createAxesTree( rContainer, xChartDoc, xDiagram );
createDataSeriesTree( rContainer, xDiagram );
}
}
void ObjectHierarchy::createDataSeriesTree(
tChildContainer & rOutDiagramSubContainer,
const rtl::Reference< Diagram > & xDiagram )
{
try
{
sal_Int32 nDimensionCount = xDiagram->getDimension();
std::vector< rtl::Reference< BaseCoordinateSystem > > aCooSysSeq(
xDiagram->getBaseCoordinateSystems());
for( std::size_t nCooSysIdx=0; nCooSysIdx<aCooSysSeq.size(); ++nCooSysIdx )
{
std::vector< rtl::Reference< ChartType > > aChartTypeSeq( aCooSysSeq[nCooSysIdx]->getChartTypes2());
for( std::size_t nCTIdx=0; nCTIdx<aChartTypeSeq.size(); ++nCTIdx )
{
const rtl::Reference< ChartType >& xChartType( aChartTypeSeq[nCTIdx] );
std::vector< rtl::Reference< DataSeries > > aSeriesSeq( xChartType->getDataSeries2() );
const sal_Int32 nNumberOfSeries =
ChartTypeHelper::getNumberOfDisplayedSeries( xChartType, aSeriesSeq.size());
for( sal_Int32 nSeriesIdx=0; nSeriesIdx<nNumberOfSeries; ++nSeriesIdx )
{
OUString aSeriesParticle(
ObjectIdentifier::createParticleForSeries(
0, nCooSysIdx, nCTIdx, nSeriesIdx ));
ObjectIdentifier aSeriesOID(
ObjectIdentifier( ObjectIdentifier::createClassifiedIdentifierForParticle( aSeriesParticle ) ) );
rOutDiagramSubContainer.push_back( aSeriesOID );
tChildContainer aSeriesSubContainer;
rtl::Reference< DataSeries > const & xSeries = aSeriesSeq[nSeriesIdx];
// data labels
if( DataSeriesHelper::hasDataLabelsAtSeries( xSeries ) )
{
OUString aChildParticle( ObjectIdentifier::getStringForType( OBJECTTYPE_DATA_LABELS ) + "=" );
aSeriesSubContainer.emplace_back( ObjectIdentifier::createClassifiedIdentifierForParticles( aSeriesParticle, aChildParticle ) );
}
// Statistics
if( ChartTypeHelper::isSupportingStatisticProperties( xChartType, nDimensionCount ) )
{
const std::vector< rtl::Reference< RegressionCurveModel > > & rCurves( xSeries->getRegressionCurves2());
for( size_t nCurveIdx=0; nCurveIdx<rCurves.size(); ++nCurveIdx )
{
bool bIsAverageLine = RegressionCurveHelper::isMeanValueLine( rCurves[nCurveIdx] );
aSeriesSubContainer.emplace_back( ObjectIdentifier::createDataCurveCID( aSeriesParticle, nCurveIdx, bIsAverageLine ) );
if( RegressionCurveHelper::hasEquation( rCurves[nCurveIdx] ) )
{
aSeriesSubContainer.emplace_back( ObjectIdentifier::createDataCurveEquationCID( aSeriesParticle, nCurveIdx ) );
}
}
Reference< beans::XPropertySet > xErrorBarProp;
if( (xSeries->getPropertyValue( CHART_UNONAME_ERRORBAR_Y) >>= xErrorBarProp) &&
xErrorBarProp.is())
{
sal_Int32 nStyle = css::chart::ErrorBarStyle::NONE;
if( ( xErrorBarProp->getPropertyValue( u"ErrorBarStyle"_ustr) >>= nStyle ) &&
( nStyle != css::chart::ErrorBarStyle::NONE ) )
{
aSeriesSubContainer.emplace_back( ObjectIdentifier::createClassifiedIdentifierWithParent(
OBJECTTYPE_DATA_ERRORS_Y, u"", aSeriesParticle ) );
}
}
if( (xSeries->getPropertyValue(CHART_UNONAME_ERRORBAR_X) >>= xErrorBarProp) &&
xErrorBarProp.is())
{
sal_Int32 nStyle = css::chart::ErrorBarStyle::NONE;
if( ( xErrorBarProp->getPropertyValue( u"ErrorBarStyle"_ustr) >>= nStyle ) &&
( nStyle != css::chart::ErrorBarStyle::NONE ) )
{
aSeriesSubContainer.emplace_back( ObjectIdentifier::createClassifiedIdentifierWithParent(
OBJECTTYPE_DATA_ERRORS_X, u"", aSeriesParticle ) );
}
}
}
// Data Points
// iterate over child shapes of legend and search for matching CIDs
if( m_pExplicitValueProvider )
{
rtl::Reference< SvxShapeGroupAnyD > xSeriesShapeContainer =
dynamic_cast<SvxShapeGroupAnyD*>(
m_pExplicitValueProvider->getShapeForCID( aSeriesOID.getObjectCID() ).get() );
lcl_getChildOIDs( aSeriesSubContainer, xSeriesShapeContainer );
}
if( ! aSeriesSubContainer.empty())
m_aChildMap[ aSeriesOID ] = std::move(aSeriesSubContainer);
}
}
}
}
catch( const uno::Exception & )
{
DBG_UNHANDLED_EXCEPTION("chart2");
}
}
void ObjectHierarchy::createAdditionalShapesTree(tChildContainer& rContainer)
{
try
{
if ( m_pExplicitValueProvider )
{
rtl::Reference<SvxDrawPage> xDrawPage( m_pExplicitValueProvider->getDrawModelWrapper()->getMainDrawPage() );
Reference< drawing::XShapes > xChartRoot( DrawModelWrapper::getChartRootShape( xDrawPage ) );
sal_Int32 nCount = xDrawPage->getCount();
for ( sal_Int32 i = 0; i < nCount; ++i )
{
Reference< drawing::XShape > xShape;
if ( xDrawPage->getByIndex( i ) >>= xShape )
{
if ( xShape.is() && xShape != xChartRoot )
{
rContainer.emplace_back( xShape );
}
}
}
}
}
catch ( const uno::Exception& )
{
DBG_UNHANDLED_EXCEPTION("chart2");
}
}
bool ObjectHierarchy::hasChildren( const ObjectIdentifier& rParent ) const
{
if ( rParent.isValid() )
{
tChildMap::const_iterator aIt( m_aChildMap.find( rParent ));
if( aIt != m_aChildMap.end())
return ! (aIt->second.empty());
}
return false;
}
const ObjectHierarchy::tChildContainer & ObjectHierarchy::getChildren( const ObjectIdentifier& rParent ) const
{
if ( rParent.isValid() )
{
tChildMap::const_iterator aIt( m_aChildMap.find( rParent ));
if( aIt != m_aChildMap.end())
return aIt->second;
}
static const tChildContainer EMPTY;
return EMPTY;
}
const ObjectHierarchy::tChildContainer & ObjectHierarchy::getSiblings( const ObjectIdentifier& rNode ) const
{
if ( rNode.isValid() && !ObjectHierarchy::isRootNode( rNode ) )
{
for (auto const& child : m_aChildMap)
{
tChildContainer::const_iterator aElemIt(
std::find( child.second.begin(), child.second.end(), rNode ));
if( aElemIt != child.second.end())
return child.second;
}
}
static const tChildContainer EMPTY;
return EMPTY;
}
ObjectIdentifier ObjectHierarchy::getParentImpl(
const ObjectIdentifier & rParentOID,
const ObjectIdentifier & rOID ) const
{
// search children
tChildContainer aChildren( getChildren( rParentOID ));
tChildContainer::const_iterator aIt(
std::find( aChildren.begin(), aChildren.end(), rOID ));
// recursion end
if( aIt != aChildren.end())
return rParentOID;
for (auto const& child : aChildren)
{
// recursion
ObjectIdentifier aTempParent( getParentImpl( child, rOID ));
if ( aTempParent.isValid() )
{
// exit on success
return aTempParent;
}
}
// exit on fail
return ObjectIdentifier();
}
ObjectIdentifier ObjectHierarchy::getParent(
const ObjectIdentifier & rOID ) const
{
return getParentImpl( ObjectHierarchy::getRootNodeOID(), rOID );
}
ObjectHierarchy::ObjectHierarchy(
const rtl::Reference<::chart::ChartModel> & xChartDocument,
ExplicitValueProvider * pExplicitValueProvider /* = 0 */,
bool bFlattenDiagram /* = false */,
bool bOrderingForElementSelector /* = false */) :
m_pExplicitValueProvider( pExplicitValueProvider ),
m_bFlattenDiagram( bFlattenDiagram ),
m_bOrderingForElementSelector( bOrderingForElementSelector )
{
createTree( xChartDocument );
// don't remember this helper to avoid access after lifetime
m_pExplicitValueProvider = nullptr;
}
ObjectHierarchy::~ObjectHierarchy()
{}
ObjectIdentifier ObjectHierarchy::getRootNodeOID()
{
return ObjectIdentifier( u"ROOT"_ustr );
}
bool ObjectHierarchy::isRootNode( const ObjectIdentifier& rOID )
{
return ( rOID == ObjectHierarchy::getRootNodeOID() );
}
const ObjectHierarchy::tChildContainer & ObjectHierarchy::getTopLevelChildren() const
{
return getChildren( ObjectHierarchy::getRootNodeOID());
}
sal_Int32 ObjectHierarchy::getIndexInParent(
const ObjectIdentifier& rNode ) const
{
ObjectIdentifier aParentOID( getParent( rNode ));
const tChildContainer & aChildren( getChildren( aParentOID ) );
sal_Int32 nIndex = 0;
for (auto const& child : aChildren)
{
if ( child == rNode )
return nIndex;
++nIndex;
}
return -1;
}
ObjectKeyNavigation::ObjectKeyNavigation(
ObjectIdentifier aCurrentOID,
rtl::Reference<::chart::ChartModel> xChartDocument,
ExplicitValueProvider * pExplicitValueProvider /* = 0 */ ) :
m_aCurrentOID(std::move( aCurrentOID )),
m_xChartDocument(std::move( xChartDocument )),
m_pExplicitValueProvider( pExplicitValueProvider )
{
if ( !m_aCurrentOID.isValid() )
{
setCurrentSelection( ObjectHierarchy::getRootNodeOID() );
}
}
bool ObjectKeyNavigation::handleKeyEvent(
const awt::KeyEvent & rEvent )
{
bool bResult = false;
switch( rEvent.KeyCode )
{
case awt::Key::TAB:
if( rEvent.Modifiers & awt::KeyModifier::SHIFT )
bResult = previous();
else
bResult = next();
break;
case awt::Key::HOME:
bResult = first();
break;
case awt::Key::END:
bResult = last();
break;
case awt::Key::F3:
if( rEvent.Modifiers & awt::KeyModifier::SHIFT )
bResult = up();
else
bResult = down();
break;
case awt::Key::ESCAPE:
setCurrentSelection( ObjectIdentifier() );
bResult = true;
break;
default:
bResult = false;
break;
}
return bResult;
}
void ObjectKeyNavigation::setCurrentSelection( const ObjectIdentifier& rOID )
{
m_aCurrentOID = rOID;
}
bool ObjectKeyNavigation::first()
{
ObjectHierarchy aHierarchy( m_xChartDocument, m_pExplicitValueProvider );
const ObjectHierarchy::tChildContainer& aSiblings( aHierarchy.getSiblings( getCurrentSelection() ) );
bool bResult = !aSiblings.empty();
if( bResult )
setCurrentSelection( aSiblings.front());
else
bResult = veryFirst();
return bResult;
}
bool ObjectKeyNavigation::last()
{
ObjectHierarchy aHierarchy( m_xChartDocument, m_pExplicitValueProvider );
const ObjectHierarchy::tChildContainer& aSiblings( aHierarchy.getSiblings( getCurrentSelection() ) );
bool bResult = !aSiblings.empty();
if( bResult )
setCurrentSelection( aSiblings.back());
else
bResult = veryLast();
return bResult;
}
bool ObjectKeyNavigation::next()
{
ObjectHierarchy aHierarchy( m_xChartDocument, m_pExplicitValueProvider );
ObjectHierarchy::tChildContainer aSiblings( aHierarchy.getSiblings( getCurrentSelection() ) );
bool bResult = !aSiblings.empty();
if( bResult )
{
ObjectHierarchy::tChildContainer::const_iterator aIt(
std::find( aSiblings.begin(), aSiblings.end(), getCurrentSelection()));
assert(aIt != aSiblings.end());
if( ++aIt == aSiblings.end())
aIt = aSiblings.begin();
setCurrentSelection( *aIt );
}
else
bResult = veryFirst();
return bResult;
}
bool ObjectKeyNavigation::previous()
{
ObjectHierarchy aHierarchy( m_xChartDocument, m_pExplicitValueProvider );
ObjectHierarchy::tChildContainer aSiblings( aHierarchy.getSiblings( getCurrentSelection()));
bool bResult = !aSiblings.empty();
if( bResult )
{
ObjectHierarchy::tChildContainer::const_iterator aIt(
std::find( aSiblings.begin(), aSiblings.end(), getCurrentSelection()));
OSL_ASSERT( aIt != aSiblings.end());
if( aIt == aSiblings.begin())
aIt = aSiblings.end();
--aIt;
setCurrentSelection( *aIt );
}
else
bResult = veryLast();
return bResult;
}
bool ObjectKeyNavigation::up()
{
ObjectHierarchy aHierarchy( m_xChartDocument, m_pExplicitValueProvider );
bool bResult = !ObjectHierarchy::isRootNode( getCurrentSelection());
if( bResult )
setCurrentSelection( aHierarchy.getParent( getCurrentSelection()));
return bResult;
}
bool ObjectKeyNavigation::down()
{
ObjectHierarchy aHierarchy( m_xChartDocument, m_pExplicitValueProvider );
bool bResult = aHierarchy.hasChildren( getCurrentSelection());
if( bResult )
{
const ObjectHierarchy::tChildContainer& aChildren = aHierarchy.getChildren( getCurrentSelection());
OSL_ASSERT( !aChildren.empty());
setCurrentSelection( aChildren.front());
}
return bResult;
}
bool ObjectKeyNavigation::veryFirst()
{
ObjectHierarchy aHierarchy( m_xChartDocument, m_pExplicitValueProvider );
const ObjectHierarchy::tChildContainer& aChildren( aHierarchy.getTopLevelChildren());
bool bResult = !aChildren.empty();
if( bResult )
setCurrentSelection( aChildren.front());
return bResult;
}
bool ObjectKeyNavigation::veryLast()
{
ObjectHierarchy aHierarchy( m_xChartDocument, m_pExplicitValueProvider );
const ObjectHierarchy::tChildContainer& aChildren( aHierarchy.getTopLevelChildren());
bool bResult = !aChildren.empty();
if( bResult )
setCurrentSelection( aChildren.back());
return bResult;
}
} // namespace chart
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */